Ever since Download Statusbar went defunt, I've been looking for something else simple and easy to use for managing my downloads. I tried Download Status Bar (which currently doesn't have the minimode/button that I was using before), and then rediscovered Firefox's download panel. I found that it worked decently as a replacement (I also liked the aesthetic better, and it integrated my theme), but two things were a problem - the download entries were uselessly bloated, and the current downloading speed wasn't shown unless I went to the main downloads window. This add-on was just what I needed. The entries are much slimmer and I can see the speed I'm downloading at. What's also nice is that I can now view more than the last 3 downloads.
There are a couple of other things I'd like to see - for one, I'd like to be able to delete files directly from the panel (such as in the case of a broken download that I want to restart), instead of having to dig through my downloads folder. It would be nice if the "Show All Downloads" button could be replaced with one that clears the download list. Also, it would be cool if there was some way to see the direct link (maybe when hovering over the download bar or something), rather than having to select "Copy Download Link" and then paste it somewhere else.
In any case, this addon is great for making Firefox's download manager more functional - I'm lucky to have found it. :D